Post by yu.. » Sun, 29 Mar 1998 04:00:00

HI All.

We have a SunOS 4.2 server with 925 MB swap space (as partitioned) after
rebooting.  Recently we get this strange problem:  each time someone runs a
big program, it eats all the swap space (under /tmp), and even after the
program finishes, the swap space does not return (eventually the server
freezes).  We check ps  -ef, there is no big mem program running. So we have
to reboot the server to get the swap space back.

What is wrong here?  




1. plenty of swap space, but keep receiving error "swap space limit exceeded"

Syslog reports
  unix: WARNING: /tmp: File system full, swap space limit exceeded


  Filesystem            kbytes    used   avail capacity  Mounted on
  swap                 2423720   48480 2375240     3%    /tmp

The host:
  SunOS <hostname> 5.7 Generic_106541-16 sun4u sparc SUNW,Ultra-60

I ran vmstat 1 for some time and watched for available swap space to
go to zero. But the lowest it would go is 75kB.

When analyzing this problem, I ran into the following error twice, but
for different commands:
  Can't run command <command>
  fork(2) failed; no more memory

What's going on?


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